On 06/27/2011 04:56 PM, Jan Kiszka wrote:
On 2011-06-27 15:21, Avi Kivity wrote:
>  Simple implementations of memory routers, for example the Cirrus VGA memory 
banks
>  or the 440FX PAM registers can generate adjacent memory regions which are 
contiguous.
>  Detect these and merge them; this saves kvm memory slots and shortens lookup 
times.

That reminds me of KVM_CAP_JOIN_MEMORY_REGIONS_WORKS. Have you checked
if things still work in the absence of the feature or if we need to lift
our requirements on the host kernel (would be 2.6.30, not that problematic)?

Good catch.

We should probably disable merging if it doesn't work. Or we should declare that a kernel bug should be fixed in the kernel, not userspace, and backport the fix to 2.6.27.whatever.

--
error compiling committee.c: too many arguments to function

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